Symptom Chart: Anti-Lock Brake System (ABS) and Stability Control
WARNING: This page is about a different car, the 2018 Ford F-550 Super Duty, 2018 Ford F-450 Super Duty, 2018 Ford F-350 Super Duty, and 2018 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to: Diagnostic Methods .
Symptom Chart: ABS and Stability Control
| Condition | Possible Sources | Actions |
|---|---|---|
| A module does not respond to the diagnostic scan tool | Fuse Wiring, terminals or connectors ABS module concern |
REFER to: Communications Network . |
| The brake warning indicator is always or never on | Low brake fluid level Brake fluid level sensor Parking brake applied Parking brake switch IPC concern ABS concern |
RETRIEVE and DIAGNOSE all ABS module Diagnostic Trouble Codes (DTCs). If there are no ABS module Diagnostic Trouble Codes (DTCs), DIAGNOSE the brake warning indicator. Refer to: Instrumentation, Message Center and Warning Chimes . |
| The ABS warning indicator is always or never on | IPC concern ABS concern |
RETRIEVE and DIAGNOSE all ABS module Diagnostic Trouble Codes (DTCs). If there are no ABS module Diagnostic Trouble Codes (DTCs), DIAGNOSE the ABS warning indicator. Refer to: Instrumentation, Message Center and Warning Chimes . |
| The stability-traction control OFF indicator (sliding-car OFF icon) is always on | IPC concern ABS concern |
RETRIEVE and DIAGNOSE all ABS module Diagnostic Trouble Codes (DTCs). If there are no ABS module Diagnostic Trouble Codes (DTCs), DIAGNOSE the stability-traction control OFF indicator. Refer to: Instrumentation, Message Center and Warning Chimes . |
| ABS false activation, ABS too sensitive, ABS activates on normal stop | Refer to the Pinpoint Test | GO to Pinpoint Test AG |
| The traction control system is inoperative or cannot be disabled | Refer to the Pinpoint Test | GO to Pinpoint Test K |
| The Hill Descent Control™ system is inoperative or cannot be disabled | Refer to the Pinpoint Test | GO to Pinpoint Test R |
| The hill start assist feature is inoperative, cannot be disabled or enabled | Network concern IPC concern ABS module concern |
Using a diagnostic scan tool, CARRY OUT the IPC self-test. DIAGNOSE all IPC Diagnostic Trouble Codes (DTCs). Refer to: Instrumentation, Message Center and Warning Chimes
. Using a diagnostic scan tool, CARRY OUT the ABS module self-test. DIAGNOSE all ABS module Diagnostic Trouble Codes (DTCs). GO to DTC Chart: Anti-Lock Brake System (ABS) Module |